Chiang Mai to San Marcos, TX: time difference
San Marcos, TX is 12 h behind Chiang Mai. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Chiang Mai 21:21 9:21 PM San Marcos, TX 09:21 9:21 AM You –:–
21:21 9:21 PM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
09:21 9:21 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:59
·
−12 h
San Marcos, TX is 12 h behind Chiang Mai.
When you, Chiang Mai and San Marcos, TX are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Chiang Mai
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 San Marcos, TX
12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇺🇸 San Marcos, TX |
|---|---|---|
| Local time | 21:21 | 09:21 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Indochina Time | Central Daylight Time |
| UTC offset | UTC+7 | UTC-5 |
| Offset from Chiang Mai | — | −12 h |
| IANA zone | Asia/Bangkok | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:19 | 07:36 |
| Sunset | 18:01 | 18:59 |
| Daylight | 11 h 41 min | 11 h 23 min |
| People on this clock | 127,240 | 44,894 |
Compare Chiang Mai with another city
More comparisons with Chiang Mai: the time zones next to it and the far side of the clock.
Big time differences
Chiang Mai and San Marcos, TX: common questions
What is the time difference between Chiang Mai and San Marcos, TX?
San Marcos is 12 hours behind: it uses UTC−5, while Chiang Mai is on UTC+7.
If it is 9:00 AM in Chiang Mai, what time is it in San Marcos, TX?
At 9:00 AM in Chiang Mai, clocks in San Marcos show 9:00 PM (the previous day).
If it is 6:00 PM in Chiang Mai, what time is it in San Marcos, TX?
At 6:00 PM in Chiang Mai, clocks in San Marcos show 6:00 AM.
When is a good time to call San Marcos, TX, from Chiang Mai?
Working hours (9:00 AM–6:00 PM) in Chiang Mai and in San Marcos do not overlap. At 9:00 AM in Chiang Mai it is 9:00 PM (the previous day) in San Marcos; when the working day starts in San Marcos, it is 9:00 PM in Chiang Mai.
When is it still the previous day in San Marcos, TX?
Until 12:00 PM in Chiang Mai it is still the previous day in San Marcos. The other way round, from 12:00 PM in San Marcos it is already the next day in Chiang Mai.
Does the time gap between Chiang Mai and San Marcos, TX, change during the year?
Yes – daylight saving time is used in San Marcos but not in Chiang Mai. From November 1, 2026, San Marcos will be 13 hours behind Chiang Mai.
